Seventy five years ago, three remarkable papers by Schrödinger, Kennard and Darwin were
published. They were devoted to the evolution of Gaussian wave packets for an oscillator, a …

We present a review of theoretical and experimental aspects of multiphoton quantum optics.
Multiphoton processes occur and are important for many aspects of matter–radiation …

The state of a physical system is the mathematical description that provides complete
information on the system. Its knowledge is equivalent to knowing the result of any possible …

This monograph presents recent developments in quantum field theory at finite temperature.
By using Lie groups, ideas from thermal theory are considered with concepts of symmetry …

We propose an implementation of a source of strongly sub-Poissonian light in a system
consisting of a quantum dot coupled to both modes of a lossy bimodal optical cavity. When …

We report the experimental realization and tomographic analysis of quantum light states
obtained by exciting a classical thermal field by a single photon. Such states, although …

We present a general unified approach for arranging quantum operators of optical fields into
ordered products (normal ordering, antinormal ordering, Weyl ordering (or symmetric …

We consider a way to generate operational inequalities to test nonclassicality (or
quantumness) of multimode bosonic fields (or multiparty bosonic systems) that unifies the …

Nonclassicality of Quantum States: A Hierarchy of Observable Conditions Page 1
Nonclassicality of Quantum States: A Hierarchy of Observable Conditions Th. Richter and W …

We discuss nonclassical properties of single-photon subtracted squeezed vacuum states in
terms of the sub-Poissonian statistics and the negativity of the Wigner function. We derive a …